
Creative ideas with easy-to-follow instructions show kids how to make their own paper, compare phosphate levels in detergents, test the effects of oil pollution, conduct a recycling survey, create a trash sculpture, redesign a package, chart a flush, measure acidity and make a difference in many other exciting ways.
Page Count:
184
Publication Date:
1990-01-01
Publisher:
Learning Works
ISBN-10:
0881601950
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